Related Clues:
- People celebrate when they change
- Achieves senior status?
- Long period in Spain, working
- A long time back for example visiting S Africa
- Hyperbolic wait time
- Turns 100
- Length of time spent on hold, it often seems
- Long time to wait, facetiously
- Time period of 1 billion years
- Interminable span
- Develops wrinkles, say
- Like, for-EV-er
- It's quite a long time
- Period divided into eras
- Quite a while, old-style